🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.95 AU - 0.97 AU

Year: 332 Days

Day: 39.8 Hours

Environment

Temp: 141 °C

Axial Tilt: 31.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.91 AU - 2.95 AU

Year: 1338 Days

Day: 35 Hours

Environment

Temp: -68 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,852,475 km

• M1: 22,888 km (0.03 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.3 AU - 3.36 AU

Year: 1681 Days

Day: 29.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.33 AU - 3.89 AU

Year: 1937 Days

Day: 38.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.38 AU - 5.1 AU

Year: 3644 Days

Day: 20.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.67 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 14.3

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.43 AU - 9.77 AU

Year: 8905 Days

Day: 10.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,852,475 km

• M1: 177,872 km (0.069 R)
• M2: 828,623 km (0.116 R)
• M3: 1,388,268 km (0.096 R)
• M4: 2,929,426 km (0.102 R)
• M5: 4,478,511 km (0.063 R)
• M6: 4,995,372 km (0.105 R)
• M7: 5,758,172 km (0.097 R)
• M8: 8,384,811 km (0.055 R)
• M9: 10,216,936 km (0.116 R)
• M10: 16,650,841 km (0.075 R)
• M11: 20,580,179 km (0.094 R)
• M12: 23,609,835 km (0.054 R)
• M13: 25,089,358 km (0.097 R)
• M14: 29,266,430 km (0.119 R)
• M15: 32,184,037 km (0.093 R)
• M16: 43,170,505 km (0.092 R)
• M17: 46,085,120 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447

Radius: 8.4

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.55 AU - 11.11 AU

Year: 12585 Days

Day: 14.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 55,852,475 km

• M1: 104,569 km (0.047 R)
• M2: 420,669 km (0.114 R)
• M3: 1,121,086 km (0.069 R)
• M4: 1,659,489 km (0.091 R)
• M5: 2,090,181 km (0.037 R)
• M6: 3,269,461 km (0.113 R)
• M7: 3,560,729 km (0.112 R)
• M8: 3,842,870 km (0.09 R)
• M9: 4,966,500 km (0.119 R)
• M10: 5,419,033 km (0.081 R)
• M11: 5,793,626 km (0.105 R)
• M12: 7,022,274 km (0.089 R)
• M13: 7,303,817 km (0.105 R)
• M14: 8,149,942 km (0.042 R)
• M15: 8,416,077 km (0.109 R)
• M16: 8,872,650 km (0.077 R)
• M17: 11,407,735 km (0.111 R)
• M18: 12,024,228 km (0.097 R)
• M19: 16,833,650 km (0.113 R)
• M20: 17,706,254 km (0.094 R)
• M21: 19,462,683 km (0.076 R)
• M22: 19,779,531 km (0.118 R)
• M23: 20,099,970 km (0.093 R)
• M24: 22,009,587 km (0.076 R)
• M25: 23,318,418 km (0.104 R)
• M26: 24,219,147 km (0.098 R)
• M27: 25,994,425 km (0.093 R)
• M28: 31,077,611 km (0.092 R)
• M29: 37,270,814 km (0.087 R)
• M30: 38,005,937 km (0.037 R)
• M31: 39,252,536 km (0.112 R)
• M32: 40,397,708 km (0.104 R)
• M33: 46,037,249 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296

Radius: 3.6

Gravity: 22.84 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 11.31 AU - 17.33 AU

Year: 19134 Days

Day: 22.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,852,475 km

• M1: 45,927 km (0.108 R)
• M2: 236,963 km (0.102 R)
• M3: 532,568 km (0.092 R)
• M4: 2,987,769 km (0.099 R)
• M5: 3,254,352 km (0.049 R)
• M6: 4,209,086 km (0.033 R)
• M7: 4,929,549 km (0.083 R)
• M8: 6,490,603 km (0.088 R)
• M9: 8,735,169 km (0.1 R)
• M10: 13,999,369 km (0.107 R)
• M11: 14,334,169 km (0.056 R)
• M12: 17,904,023 km (0.035 R)
• M13: 19,516,837 km (0.082 R)
• M14: 23,028,049 km (0.109 R)
• M15: 23,213,999 km (0.104 R)
• M16: 24,350,045 km (0.115 R)
• M17: 25,127,805 km (0.101 R)
• M18: 26,630,366 km (0.097 R)
• M19: 27,874,870 km (0.114 R)
• M20: 31,041,109 km (0.115 R)
• M21: 33,596,989 km (0.087 R)
• M22: 41,961,305 km (0.082 R)
• M23: 48,195,796 km (0.116 R)
• M24: 49,419,806 km (0.034 R)
• M25: 52,089,679 km (0.107 R)

Kuiper Belt

Range: 31.1 - 52.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 17,216 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit